I first used the drivers that came on a disk with the lead. I then tried using the latest drivers from the FTDI website. I also use a program called FTClean which uninstalls all FTDI drivers and then tried again. Still no joy.

Hi, I am having the same problem. I have installed the latest drivers, plugged in the usb lead and it installs in other devices as VAG KKL 409.1 with a caution saying 'The drivers for this device are not installed. (Code 28)'. Does anyone know why it is not showing up in PORTS (COM & LPT) ? I am...